Use the order of operations to find the value of the following expression.

3 + √81 ÷ 3 - (1 × 4)

12
0
20
2

Answer:

Yes

Step-by-step explanation:

120

%

=

1.2

If Maxine is correct, then she spent

1.2

times the hours she did homework than last week.

15

⋅

1.2

=

18.0

=

18

15 hours

⋅

1.2

=

18.0 hours

=

18 hours

This means that Maxine is correct.

Answer:

d = 9.6 (1dp)

Step-by-step explanation:

Based on the picture below

Using Pythagoras

\(a^{2} + b^{2} = c^{2} \\8^{2} + 2^{2} = x^{2} \\64 + 4 = x^{2} \\68 = x^{2} \\x = \sqrt{68}\\\)

Using Pythagoras

\(a^{2} + b^{2} = c^{2} \\5^{2} + (\sqrt{68})^{2} = d^{2}\\25 + 68 = d^{2}\\93 = d^{2}\\d = \sqrt{93}\\d = 9.64365...\\d = 9.6 (1dp)\)

The length of the diagonal, d, of the rectangular prism is  9.6  .

A rectangular prism is a polyhedron with two congruent and parallel bases. It is also called a cuboid. A rectangular prism has six faces, and all the faces are in a rectangle shape and have twelve edges. Because of its cross-section along the length, it is said to be a prism.

The formula for the length of the diagonal of a right rectangular prism is :

\(\sqrt{l^{2} +b^{2} +h^{2} }\)

where l is the length, b is the breadth and h is the height of a right rectangular prism.

According to the question

Length of rectangular prism  = 5

Breath of rectangular prism  = 8

Height of rectangular prism  = 2

Now,

The diagonal of rectangular prism =  d

By using the formula of  the length of the diagonal of a  rectangular prism is :

\(\sqrt{l^{2} +b^{2} +h^{2} }\)

Substituting the value in formula

\(\sqrt{l^{2} +b^{2} +h^{2} }\)  = d

\(\sqrt{5^{2} +8^{2} +2^{2} }\)  = d

\(\sqrt{25 +64 +4 }\)  = d

\(\sqrt{93 }\)  = d

Therefore,

d = 9.6  

Hence, the length of the diagonal, d, of the rectangular prism is  9.6  .

To know more about rectangular prism and its diagonal  here:

https://brainly.com/question/12517010

#SPJ2

Answer:

Step-by-step explanation:

A

Answer:

Heres the answer to your question. Hope this helps!

Answer:

bottom (last) option

Step-by-step explanation:

The bottom curve is the only function fit with "one to one " or "injective" property.

Answer:

d. \(\frac{1}{3}\)

Step-by-step explanation:

\(\frac{120}{360} =\frac{1}{3}\)

Answer:

A

Step-by-step explanation:

A)12

48÷2= {24}1 day per person

24-12=12

Answer:

2/ 15

Step-by-step explanation:

since the probability is 16/ 120
then we simplify it till it gets 2/15

hope this helps
and good luck!

Answer: -45 feet in 15 hours

Step-by-step explanation: First you have to know how much it drills per hour. For that your ganna have to divide -72 and 24 to get answer of how much per hour, which is -3 per hour. Finally, your ganna have to multiply -3 and 15 which gives you the final answer of -45 feet in 15 hours

Answer:

-45 feet.

Step-by-step explanation:

First, we need to find out the rate at which the machine was digging. To do this, we need to divide -72 by 24, to find how many feet are dug each day. Once we divide, we get a rate of -3 feet per hour. We can then make an equation based on this, y = -3x. We can then plug in the hours we want to find, 15, into the equation, to make y = -3(15). Once we multiply, we get y = -45, so our answer is -45 feet.

Answer:

It's J my child

Step-by-step explanation:

-1 + -1 + -1 + -1 + -1 = -5

-5 - (6) = 1

(The six is from the 6 square blocks that says 1 on it)

(I put the parenthesis on the 6 so you know that it's a positive number and so you won't get messed up from the subtraction sign)

Step-by-step explanation:

x^2-2x-63=0

x^2-x(9-7)-63=0

x^2-9x+7x-63=0

x(x-9)+7(x-9)=0

(x+7)(x-9)=0

x=-7

x=9

Answer: x = -9 and x= 7

Step-by-step explanation: By using completing the square method

= x² - 2x-63

= x² -7x+9x -63

= x(x-7)+ 9(x-7)

= (x+9) (x-7)

= x = -9 and x= 7

Answer:

0.52 cubic units

Step-by-step explanation:

\(V_{sphere} = \frac{4}{3} \pi {r}^{3} \\ \\ = \frac{4}{3} \times 3.14 \times {(0.5)}^{3} \\ \\ = \frac{4}{3} \times 3.14 \times 0.125 \\ \\ = \frac{1.57}{3} \\ \\ = 0.523333333 \\ \\ = 0.52 \: {units}^{3} \\ \)

Answer:

1) 3/13

2)? im not sure

3) 2/7

4)2/14

im not sure they might be wrong

Answer:

c

Step-by-step explanation:

area is length multiply width 21 and 27 is 567m2

Answer:

Hence, 70 people out of 100 who had attained the previous year

Step-by-step explanation:

If this is completely proportional, you'd make the formula

\( \frac{420}{600} = \frac{x}{100} \)

Cross multiply

\(42000 = 600x\)

Then we just divide by 600

\(x = 70\)

Answer:

Step-by-step explanation:

\(2-\frac{3}{4}x =\frac{2}{5}\\8-3x=\frac{8}{5}\\40-15x=8\)

I simply multiplied the equation on both sides by the denominators of each fraction to get whole numbers. You can also do this by multiplying by 20, since the product of the denominators is 20 and will guarantee to create a numerator that creates a fraction that is also a whole number.

20(3/4)=60/4=15

20(2/5)=40/5=8

20(2)=40

Answer:2-.75x=.40

Step-by-step explanation:

Answer:

m=9

Step-by-step explanation:

Answer:

the answer is D (the last one)

Step-by-step explanation:

Answer:

Step-by-step explanation:

.02x + .02 = .08 solve for x

0.02x + 0.02 = 0.08

0.02x = 0.08 - 0.02

0.02x = 0.06

x = 0.06 : 0.02

x = 3

----------------

check

0.02 * 3 + 0.02 = 0.08

0.06 = 0.08 - 0.02

0.06 = 0.06

The answer is good

Step-by-step explanation:

Hope this is correct

Have a good day!

Answer:

A, C, D, and F are the rational numbers.

To determine the probability of rolling two even numbers, we need to find the favorable outcomes (outcomes with two even numbers) and divide it by the total number of possible outcomes.

The possible outcomes when rolling two dice are:

(1,1), (1,2), (1,3), (1,4), (1,5), (1,6)

(2,1), (2,2), (2,3), (2,4), (2,5), (2,6)

(3,1), (3,2), (3,3), (3,4), (3,5), (3,6)

(4,1), (4,2), (4,3), (4,4), (4,5), (4,6)

(5,1), (5,2), (5,3), (5,4), (5,5), (5,6)

(6,1), (6,2), (6,3), (6,4), (6,5), (6,6)

Out of these, the favorable outcomes (outcomes with two even numbers) are:

(2,2), (2,4), (2,6), (4,2), (4,4), (4,6), (6,2), (6,4), (6,6)

Thus, there are 9 favorable outcomes.

The total number of possible outcomes is 36 (since each die has 6 possible outcomes).

Therefore, the probability of rolling 2 even numbers is:

\(\text{Probability} = \frac{\text{Number of Favorable Outcomes}}{\text{Total Number of Possible Outcomes}} = \frac{9}{36} = \frac{1}{4} = 0.25\)

Hence, the probability of rolling 2 even numbers is 0.25 or 1/4.

Answer: 65

Step-by-step explanation:

Answer: 20 would be in the column for 2, and 60 would be in the column for 6.

Step-by-step explanation:

Answer:

None is correct.

Step-by-step explanation:

To determine the total surface area of the net, knowing that the area of each rectangle is equal to its base times its height, taking into account the following data, the following calculation must be performed:

((19 x 17) x 2) + ((17 x 6) x 4) = X

(323 x 2) + (102 x 4) = X

646 + 408 = X

1,054 = X

Thus, the total surface area of the net is 1,054 square meters, with which none of the options is correct.

Answer:

2+2x2-2+2=6

2x2-2+2+2+2=8

6+8=14

Answer:

10

2+2x2-2+2=6. 2x2-2+2+2+2=8

=14